Open-air rock-art conservation: Present issues and possible solutions with regard to the Côa Valley rock-art complex

Fernandes, António Batarda2018-07-192018-07-192015http://hdl.handle.net/10400.26/23321engArte Rupestre / Rock ArtGestão / ManagementOpen-air rock-art conservation: Present issues and possible solutions with regard to the Côa Valley rock-art complexbook part